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Katy Perry, Orlando Bloom, Golden Globe After Party

Kevin Mazur/Getty Images for The Weinstein Company

These two just can't seem to stay too far away from each other.

Orlando Bloom and Katy Perry managed to meet up once again Saturday afternoon for a special kids' birthday party. This time, however, they brought along the actor's son Flynn for the winter outing.

A source tells E! News that Orlando drove the "Firework" singer and his growing boy to Malibu where they attended the celebration for Robert Downey Jr..'s son Exton.

"She looked very comfortable with Flynn and they were both smiling and happy," our eyewitness told E! News.

While at the party, guests including Gwyneth Paltrow and Jon Favreau enjoyed an outdoor celebration that included balloons and an obstacle course for the kids. Orlando even brought his dog along for the party that lasted several hours.

"Katy didn't know as many people as Orlando so she was a little more quiet and shy," a source shared with us. "Flynn was having a great time and didn't want to leave the party. They stayed for several hours before they all headed back to Orlando's."

While both parties haven't commented about their friendship or relationship, it's hard to ignore the amount of times they've been spotted out and about together.

Whether posing in photos together at Los Angeles play or running into each other at a Stella McCartney fashion show, some fans think it could be more than just a coincidence when these two meet up.

 Regardless of what people want to believe, a source shared with E! News just last month that Katy and John Mayer "are still very much together." Furthermore, anything you see between the "Part of Me" singer and Orlando is simply platonic.